/* Copyright 2021 T.Shinohara
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "rev1.h"

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _QWERTY,
    _LOWER,
    _RAISE,
    _ADJUST
};

#ifdef OLED_ENABLE

void render_status(void) {
    // Render to mode icon
    static const char os_logo[][2][3] PROGMEM = {{{0x95, 0x96, 0}, {0xb5, 0xb6, 0}}, {{0x97, 0x98, 0}, {0xb7, 0xb8, 0}}};
    if (is_mac_mode()) {
        oled_write_P(os_logo[0][0], false);
        oled_write_P(PSTR("\n"), false);
        oled_write_P(os_logo[0][1], false);
    } else {
        oled_write_P(os_logo[1][0], false);
        oled_write_P(PSTR("\n"), false);
        oled_write_P(os_logo[1][1], false);
    }

    oled_write_P(PSTR(" "), false);

    // Host Keyboard Layer Status
    oled_write_P(PSTR("Layer: "), false);

    switch (get_highest_layer(layer_state)) {
        case _QWERTY:
            oled_write_P(PSTR("Default\n"), false);
            break;
        case _RAISE:
            oled_write_P(PSTR("Raise\n"), false);
            break;
        case _LOWER:
            oled_write_P(PSTR("Lower\n"), false);
            break;
        case _ADJUST:
            oled_write_P(PSTR("Adjust\n"), false);
            break;
        default:
            // Or use the write_ln shortcut over adding '\n' to the end of your string
            oled_write_ln_P(PSTR("Undefined"), false);
    }

    oled_write_P(PSTR("\n"), false);

    // Host Keyboard LED Status
    led_t led_state = host_keyboard_led_state();
    oled_write_P(led_state.num_lock ? PSTR("NUM ") : PSTR("    "), false);
    oled_write_P(led_state.caps_lock ? PSTR("CAP ") : PSTR("    "), false);
    oled_write_P(led_state.scroll_lock ? PSTR("SCR ") : PSTR("    "), false);
}

static void render_logo(void) {
    static const char PROGMEM qmk_logo[] = {
        0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, 0x93, 0x94,
        0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4,
        0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0x00
    };

    oled_write_P(qmk_logo, false);
}

static void render_rgbled_status(bool full) {
#    ifdef RGBLIGHT_ENABLE
    if (RGBLIGHT_MODES > 1 && rgblight_is_enabled()) {
        if (full) {
            // " LED %d:%d,%d,%d"
            oled_write_P(PSTR(" LED"), false);
            oled_write(get_u8_str(rgblight_get_mode(), ' '), false);
            oled_write_char(':', false);
            oled_write(get_u8_str(rgblight_get_hue() / RGBLIGHT_HUE_STEP, ' '), false);
            oled_write_char(',', false);
            oled_write(get_u8_str(rgblight_get_sat() / RGBLIGHT_SAT_STEP, ' '), false);
            oled_write_char(',', false);
            oled_write(get_u8_str(rgblight_get_val() / RGBLIGHT_VAL_STEP, ' '), false);
        } else {
            // "[%2d] "
            oled_write_char('[', false);
            oled_write(get_u8_str(rgblight_get_mode(), ' '), false);
            oled_write_char(']', false);
        }
    }
#    endif
}

bool oled_task_kb(void) {
    if (!oled_task_user()) {
        return false;
    }
    if (is_keyboard_master()) {
        render_status();
    } else {
        render_logo();
        render_rgbled_status(true);
    }
    return true;
}
#endif
